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The HRN-GR09K1 is a ruggedized Deutsch T-harness kit with four mounting brackets for connecting a Geotab® GO RUGGED device to most heavy-duty vehicles internationally. The HRN-GR09K1 contains four mounting adapters, which are engraved with numbers for easy reference. This harness is built to IP67 standards for protection against dust and water.
Max Length: 685 mm
Max Width: 47.8 mm
Universal 9-pin connectors: Polycarbonate, Nylon, Silicone (rubber)
Universal 16-pin connector: PBT
Wire Jacket: Mesh Sheathing
2 × Universal Deutsch Connectors
1 × 24 V compatible ALDL Connector
8 V to 36 V
−40 to +85 °C
See page 2
WARNING! The HRN-GR09K1 harness kit is designed and intended for use only with the GO device or Geotab-authorized accessory devices. Professional installation from an Geotab Authorized Installer is required. Read and follow the complete GO device installation instructions (goo.gl/rkLRiA) as well as these installation instructions to prevent serious personal injury or significant damage to your vehicle.
Flange & Screw Mount
Flange & Screw Mount Extended
Flange & Thread Mount
Flange & Thread Mount Nut
Thread Mount Nut
Start with the Geotab GO device unplugged from the vehicle. Remove the in-vehicle diagnostic connector from its bracket.
Note: Not all heavy-duty vehicles use the same connection system for securing the in-vehicle diagnostic connector to the bracket. Always follow the manufacturer's suggested method of installation or removal for any connector and bracket.
Insert the HRN-GR09K1 male harness connector into the vehicle bracket and secure in place (using the appropriate connection method). If you are securing the adapter with screws, this method will apply to both Adapter 1 and Adapter 2.
Note: Adapter 1 is pre-installed on the male harness connector. Always use the adapter that matches the diagnostic connector shape of your vehicle. For steps on how to change the adapter, see the Changing Adapters section below.
For heavy-duty vehicles that require Adapter 3 or Adapter 4, the male connector can be secured inside the vehicle bracket using the 3N or 4N nuts supplied in the HRN-GR09K1 kit. The nuts are NOT interchangeable and can only be used with their corresponding adapters.
The HRN-GS09K1 is supplied with a rubber Connector Cover for water- and dust-proofing. It must be used in installations where the male connector in Step 2 above is in an external position, outside the vehicle. The connector cover must be used to ensure IP67 rating - a waterproof and dustproof seal.
Connect the 12-pin male connector on the GO RUGGED device to the 12-pin female connector (long end) of the harness.
Connect the in-vehicle diagnostic connector to the HRN-GR09K1 harness female connector lock in place using the locking ring on the harness female connector.
If your vehicle does not use the pre-installed Adapter 1, use the steps below to replace the adapter with the one required. There are no special tools needed to change the adapter.
Note: Ensure the harness is disconnected from the vehicle before changing adapter.
On the HRN-GR09K1 male harness connector, remove the screw cap at the back of the connector and slide it slightly away from the connector.
Slide the connector forward and off the terminal cartridge. Ensure that you do not damage or move the 9 terminals inside. This will make re-insertion into the male connector easier.
Hold the connector and pull the adapter (Adapter 1 in this case) backwards and off the male connector.
Insert the desired adapter onto the male connector once again. Ensure that the adapter is correctly oriented so as to slide into the notch on the male connector.
Move the male connector back onto the terminal cartridge carefully, lining up the two installation slots on the side of the terminal cartridge with the notches inside the male connector.
Screw the cap back on at the back of the connector. Ensure that the connection is tight and that there is no gap between the adapter and the screw cap.
The HRN-GR09K1 is IP67-rated, and is water- and dust-proof when using the rubber cap and connected to corresponding waterproof vehicle connectors. The image below outlines the extent of water-resistance on this harness.
For the latest version of the Limitations of Use, please visit: goo.gl/k6Fp0w.
WARNING! Do not attempt to install, configure or remove any product from any vehicle while the vehicle is in motion or otherwise in operation. All installation, configuration or removal must be done only in stationary vehicles which are securely parked. Attempting to service units while being operated could result in malfunctions or accidents, leading to death or serious personal injury.
WARNING! All in-vehicle devices and related cabling must be securely fastened and kept clear of all vehicle controls, including gas, brake and clutch pedals. You must inspect devices and cabling on a regular basis to ensure all devices and cabling continue to be securely attached. Loose cabling or devices may impede the use of vehicle controls, resulting in unanticipated acceleration, braking or other loss of vehicle control, which could lead to death or serious personal injury. Improperly fastened in-vehicle devices may detach and impact operators upon sudden acceleration or deceleration, which may cause injury.
WARNING! If at any point after an in-vehicle device is installed a warning lights up on the vehicle dash or the vehicle stalls or has a marked drop in performance, shut off the engine, remove the device, and contact your reseller. Continuing to operate a vehicle with these symptoms can cause loss of vehicle control, and serious injury.
WARNING! Your in-vehicle devices must be kept clear of debris, water and other environmental contaminants. Failure to do so may result in units malfunctioning or short-circuiting that can lead to a fire hazard or vehicle damage or serious injury.
WARNING! Do not attempt to remove the devices from the vehicle in which they are originally installed for installation in another vehicle. Not all vehicles share compatibility, and doing so may result in unexpected interactions with your vehicle, including sudden loss of power or shutdown of the vehicle’s engine while in operation or cause your vehicle to operate poorly or erratically and cause death or serious injury and/or vehicle damage.
NOTICE — This product does not contain any user-serviceable parts. Configuration, servicing, and repairs must only be made by an authorized reseller or installer. Unauthorized servicing of these products will void your product warranty.